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This is the second coin release in the “Code of the Future” series and is dedicated to the world of new technologies, new visions and ideas. This coin is taking us into a different dimension of reality with the best symbols of the future. Mintage: only 500 pcs. Country : Niue Year : 2016 Face value : 2 Dollars Metal : Pure Silver 0.999 Weight : 2 oz Size : 50 mm Quality : Antique finish Mintage : Only 500. Worldwide Certificate of Authenticity : Yes, numbered Packaging: Yes. Series : Code of the Future Name : Speed of Light. The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is 299,792,458 metres per second (approximately 3.00×108 m/s, approximately 186,282 mi/s); it is exact because the length of the metre is defined from this constant and the international standard for time. According to special relativity, c is the maximum speed at which all matter and hence information in the universe can travel. It is the speed at which all massless particles and changes of the associated fields (including light, a type of electromagnetic radiation, and gravitational waves) travel in vacuum. Such particles and waves travel at c regardless of the motion of the source or the inertial reference frame of the observer. In the theory of relativity, c interrelates space and time, and also appears in the famous equation of massenergy equivalence E = mc2. If you have any doubt, please ask me , thank you. Add a map to your own listings. The item “Code of the Future Speed of Light $2 2oz Silver Coin Fluorescent Niue 2016″ is in sale since Tuesday, September 19, 2017. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\South Pacific”. The seller is “invercoin” and is located in Madrid. This item can be shipped worldwide.